What is the severity of CVE-2023-34409?

The severity of CVE-2023-34409 is critical with a severity value of 9.8.

How does the vulnerability in CVE-2023-34409 affect Percona Monitoring and Management (PMM) server?

The vulnerability in CVE-2023-34409 allows an unauthenticated remote user to bypass authentication in PMM server versions 2.x before 2.37.1.

How can an attacker exploit CVE-2023-34409?

An attacker can exploit CVE-2023-34409 by making a crafted POST request against an unauthenticated PMM server.

Is there a fix available for CVE-2023-34409?

Yes, the fix for CVE-2023-34409 is available in PMM server version 2.37.1.

Where can I find more information about CVE-2023-34409?

You can find more information about CVE-2023-34409 at the following link: [CVE-2023-34409](https://www.percona.com/blog/pmm-authentication-bypass-vulnerability-fixed-in-2-37-1/)

Vulnerability/
CVE-2023-34409

critical

9.8

CWE

6/6/2023

8/1/2025

CVE-2023-34409: Path Traversal

First published: Tue Jun 06 2023(Updated: )

In Percona Monitoring and Management (PMM) server 2.x before 2.37.1, the authenticate function in auth_server.go does not properly formalize and sanitize URL paths to reject path traversal attempts. This allows an unauthenticated remote user, when a crafted POST request is made against unauthenticated API routes, to access otherwise protected API routes leading to escalation of privileges and information disclosure.

Credit: cve@mitre.org cve@mitre.org

Affected Software	Affected Version	How to fix
Percona Monitoring and Management	>=2.0.0<2.37.1

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Reference Links

https://www.percona.com/blog/pmm-authentication-bypass-vulnerability-fixed-in-2-37-1/

Frequently Asked Questions

What is the severity of CVE-2023-34409?
The severity of CVE-2023-34409 is critical with a severity value of 9.8.
How does the vulnerability in CVE-2023-34409 affect Percona Monitoring and Management (PMM) server?
The vulnerability in CVE-2023-34409 allows an unauthenticated remote user to bypass authentication in PMM server versions 2.x before 2.37.1.
How can an attacker exploit CVE-2023-34409?
An attacker can exploit CVE-2023-34409 by making a crafted POST request against an unauthenticated PMM server.
Is there a fix available for CVE-2023-34409?
Yes, the fix for CVE-2023-34409 is available in PMM server version 2.37.1.
Where can I find more information about CVE-2023-34409?
You can find more information about CVE-2023-34409 at the following link: [CVE-2023-34409](https://www.percona.com/blog/pmm-authentication-bypass-vulnerability-fixed-in-2-37-1/)

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